diff options
Diffstat (limited to 'indra/llxuixml/llinitparam.h')
| -rw-r--r-- | indra/llxuixml/llinitparam.h | 446 |
1 files changed, 197 insertions, 249 deletions
diff --git a/indra/llxuixml/llinitparam.h b/indra/llxuixml/llinitparam.h index 69dcd474f7..71715d15cc 100644 --- a/indra/llxuixml/llinitparam.h +++ b/indra/llxuixml/llinitparam.h @@ -38,6 +38,9 @@ namespace LLInitParam { + // used to indicate no matching value to a given name when parsing + struct Flag{}; + template<typename T> const T& defaultValue() { static T value; return value; } template <typename T, bool IS_BOOST_FUNCTION = boost::is_convertible<T, boost::function_base>::value > @@ -65,6 +68,12 @@ namespace LLInitParam static bool equals(const LLSD &a, const LLSD &b) { return false; } }; + template<> + struct ParamCompare<Flag, false> + { + static bool equals(const Flag& a, const Flag& b) { return false; } + }; + // helper functions and classes typedef ptrdiff_t param_handle_t; @@ -275,9 +284,6 @@ namespace LLInitParam static S32 sNextParseGeneration; }; - // used to indicate no matching value to a given name when parsing - struct NoParamValue{}; - class BaseBlock; class Param @@ -385,36 +391,36 @@ namespace LLInitParam // "Multiple" constraint types, put here in root class to avoid ambiguity during use struct AnyAmount { - static U32 minCount() { return 0; } - static U32 maxCount() { return U32_MAX; } + enum { minCount = 0 }; + enum { maxCount = U32_MAX }; }; template<U32 MIN_AMOUNT> struct AtLeast { - static U32 minCount() { return MIN_AMOUNT; } - static U32 maxCount() { return U32_MAX; } + enum { minCount = MIN_AMOUNT }; + enum { maxCount = U32_MAX }; }; template<U32 MAX_AMOUNT> struct AtMost { - static U32 minCount() { return 0; } - static U32 maxCount() { return MAX_AMOUNT; } + enum { minCount = 0 }; + enum { maxCount = MAX_AMOUNT }; }; template<U32 MIN_AMOUNT, U32 MAX_AMOUNT> struct Between { - static U32 minCount() { return MIN_AMOUNT; } - static U32 maxCount() { return MAX_AMOUNT; } + enum { minCount = MIN_AMOUNT }; + enum { maxCount = MAX_AMOUNT }; }; template<U32 EXACT_COUNT> struct Exactly { - static U32 minCount() { return EXACT_COUNT; } - static U32 maxCount() { return EXACT_COUNT; } + enum { minCount = EXACT_COUNT }; + enum { maxCount = EXACT_COUNT }; }; // this typedef identifies derived classes as being blocks @@ -477,9 +483,9 @@ namespace LLInitParam void init(BlockDescriptor& descriptor, BlockDescriptor& base_descriptor, size_t block_size); - bool mergeBlockParam(bool param_provided, BlockDescriptor& block_data, const BaseBlock& other, bool overwrite) + bool mergeBlockParam(bool source_provided, bool dst_provided, BlockDescriptor& block_data, const BaseBlock& source, bool overwrite) { - return mergeBlock(block_data, other, overwrite); + return mergeBlock(block_data, source, overwrite); } // take all provided params from other and apply to self bool mergeBlock(BlockDescriptor& block_data, const BaseBlock& other, bool overwrite); @@ -497,92 +503,6 @@ namespace LLInitParam const std::string& getParamName(const BlockDescriptor& block_data, const Param* paramp) const; }; - class BaseBlockWithFlags : public BaseBlock - { - public: - class FlagBase : public Param - { - public: - typedef FlagBase self_t; - - FlagBase(const char* name, BaseBlock* enclosing_block) : Param(enclosing_block) - { - if (LL_UNLIKELY(enclosing_block->mostDerivedBlockDescriptor().mInitializationState == BlockDescriptor::INITIALIZING)) - { - ParamDescriptorPtr param_descriptor = ParamDescriptorPtr(new ParamDescriptor( - enclosing_block->getHandleFromParam(this), - &mergeWith, - &deserializeParam, - &serializeParam, - NULL, - &inspectParam, - 0, 1)); - BaseBlock::addParam(enclosing_block->mostDerivedBlockDescriptor(), param_descriptor, name); - } - } - - bool isProvided() const { return anyProvided(); } - - private: - static bool mergeWith(Param& dst, const Param& src, bool overwrite) - { - const self_t& src_typed_param = static_cast<const self_t&>(src); - self_t& dst_typed_param = static_cast<self_t&>(dst); - - if (src_typed_param.isProvided() - && (overwrite || !dst_typed_param.isProvided())) - { - dst.setProvided(true); - return true; - } - return false; - } - - static bool deserializeParam(Param& param, Parser& parser, const Parser::name_stack_range_t& name_stack, S32 generation) - { - self_t& typed_param = static_cast<self_t&>(param); - - // no further names in stack, parse value now - if (name_stack.first == name_stack.second) - { - typed_param.setProvided(true); - typed_param.enclosingBlock().paramChanged(param, true); - return true; - } - - return false; - } - - static void serializeParam(const Param& param, Parser& parser, Parser::name_stack_t& name_stack, const Param* diff_param) - { - const self_t& typed_param = static_cast<const self_t&>(param); - const self_t* typed_diff_param = static_cast<const self_t*>(diff_param); - - if (!typed_param.isProvided()) return; - - if (!name_stack.empty()) - { - name_stack.back().second = parser.newParseGeneration(); - } - - // then try to serialize value directly - if (!typed_diff_param || !typed_diff_param->isProvided()) - { - if (!parser.writeValue(NoParamValue(), name_stack)) - { - return; - } - } - } - - static void inspectParam(const Param& param, Parser& parser, Parser::name_stack_t& name_stack, S32 min_count, S32 max_count) - { - // tell parser about our actual type - parser.inspectValue<NoParamValue>(name_stack, min_count, max_count, NULL); - } - }; - }; - // these templates allow us to distinguish between template parameters // that derive from BaseBlock and those that don't template<typename T, typename Void = void> @@ -604,7 +524,7 @@ namespace LLInitParam typedef const T& value_assignment_t; ParamValue(): mValue() {} - ParamValue(const T& other) : mValue(other) {} + ParamValue(value_assignment_t other) : mValue(other) {} void setValue(value_assignment_t val) { @@ -621,6 +541,17 @@ namespace LLInitParam return mValue; } + operator value_assignment_t() const + { + return mValue; + } + + value_assignment_t operator()() const + { + return mValue; + } + + private: T mValue; }; @@ -644,7 +575,7 @@ namespace LLInitParam mValidated(false) {} - ParamValue(const T& other) + ParamValue(value_assignment_t other) : T(other), mKeyVersion(0), mValidatedVersion(-1), @@ -666,6 +597,16 @@ namespace LLInitParam { return *this; } + + operator value_assignment_t() const + { + return *this; + } + + value_assignment_t operator()() const + { + return *this; + } }; template<typename T, typename NAME_VALUE_LOOKUP = TypeValues<T> > @@ -801,11 +742,6 @@ namespace LLInitParam Param::enclosingBlock().paramChanged(*this, flag_as_provided); } - // implicit conversion - operator value_assignment_t() const { return param_value_t::getValue(); } - // explicit conversion - value_assignment_t operator()() const { return param_value_t::getValue(); } - protected: static bool mergeWith(Param& dst, const Param& src, bool overwrite) @@ -958,11 +894,6 @@ namespace LLInitParam } } - // implicit conversion - operator value_assignment_t() const { return param_value_t::getValue(); } - // explicit conversion - value_assignment_t operator()() const { return param_value_t::getValue(); } - protected: static bool mergeWith(Param& dst, const Param& src, bool overwrite) @@ -972,8 +903,7 @@ namespace LLInitParam if (src_typed_param.anyProvided()) { - bool param_provided = src_typed_param.isProvided() && (overwrite || !dst_typed_param.isProvided()); - if (dst_typed_param.mergeBlockParam(param_provided, param_value_t::selfBlockDescriptor(), src_typed_param, overwrite)) + if (dst_typed_param.mergeBlockParam(src_typed_param.isProvided(), dst_typed_param.isProvided(), param_value_t::selfBlockDescriptor(), src_typed_param, overwrite)) { dst_typed_param.clearValueName(); dst_typed_param.setProvided(true); @@ -992,8 +922,8 @@ namespace LLInitParam { public: typedef TypedParam<VALUE_TYPE, NAME_VALUE_LOOKUP, true, false> self_t; - typedef ParamValue<VALUE_TYPE, NAME_VALUE_LOOKUP> param_value_t; - typedef typename std::vector<param_value_t> container_t; + typedef ParamValue<VALUE_TYPE, NAME_VALUE_LOOKUP> param_value_t; + typedef typename std::vector<param_value_t> container_t; typedef const container_t& value_assignment_t; typedef VALUE_TYPE value_t; @@ -1118,6 +1048,8 @@ namespace LLInitParam // implicit conversion operator value_assignment_t() const { return mValues; } + // explicit conversion + value_assignment_t operator()() const { return mValues; } typedef typename container_t::iterator iterator; typedef typename container_t::const_iterator const_iterator; @@ -1169,7 +1101,7 @@ namespace LLInitParam public: typedef TypedParam<VALUE_TYPE, NAME_VALUE_LOOKUP, true, true> self_t; typedef ParamValue<VALUE_TYPE, NAME_VALUE_LOOKUP> param_value_t; - typedef typename std::vector<param_value_t> container_t; + typedef typename std::vector<param_value_t> container_t; typedef const container_t& value_assignment_t; typedef VALUE_TYPE value_t; typedef NAME_VALUE_LOOKUP name_value_lookup_t; @@ -1308,6 +1240,8 @@ namespace LLInitParam // implicit conversion operator value_assignment_t() const { return mValues; } + // explicit conversion + value_assignment_t operator()() const { return mValues; } typedef typename container_t::iterator iterator; typedef typename container_t::const_iterator const_iterator; @@ -1363,10 +1297,10 @@ namespace LLInitParam }; template <typename DERIVED_BLOCK> - class Choice : public BaseBlock + class ChoiceBlock : public BaseBlock { - typedef Choice<DERIVED_BLOCK> self_t; - typedef Choice<DERIVED_BLOCK> enclosing_block_t; + typedef ChoiceBlock<DERIVED_BLOCK> self_t; + typedef ChoiceBlock<DERIVED_BLOCK> enclosing_block_t; LOG_CLASS(self_t); public: @@ -1382,11 +1316,13 @@ namespace LLInitParam return mergeBlock(selfBlockDescriptor(), other, false); } - bool mergeBlockParam(bool param_provided, BlockDescriptor& block_data, const self_t& other, bool overwrite) + bool mergeBlockParam(bool source_provided, bool dest_provided, BlockDescriptor& block_data, const self_t& source, bool overwrite) { - if (param_provided) + bool source_override = source_provided && (overwrite || !dest_provided); + + if (source_override || source.mCurChoice == mCurChoice) { - return mergeBlock(block_data, other, overwrite); + return mergeBlock(block_data, source, overwrite); } return false; } @@ -1420,7 +1356,7 @@ namespace LLInitParam virtual BlockDescriptor& mostDerivedBlockDescriptor() { return selfBlockDescriptor(); } protected: - Choice() + ChoiceBlock() : mCurChoice(0) { BaseBlock::init(selfBlockDescriptor(), BaseBlock::selfBlockDescriptor(), sizeof(DERIVED_BLOCK)); @@ -1433,13 +1369,13 @@ namespace LLInitParam class Alternative : public TypedParam<T, NAME_VALUE_LOOKUP, false> { public: - friend class Choice<DERIVED_BLOCK>; + friend class ChoiceBlock<DERIVED_BLOCK>; typedef Alternative<T, NAME_VALUE_LOOKUP> self_t; typedef TypedParam<T, NAME_VALUE_LOOKUP, false, IsBlock<ParamValue<T, NAME_VALUE_LOOKUP> >::value> super_t; typedef typename super_t::value_assignment_t value_assignment_t; - explicit Alternative(const char* name, value_assignment_t val = defaultValue<T>()) + explicit Alternative(const char* name = "", value_assignment_t val = defaultValue<T>()) : super_t(DERIVED_BLOCK::selfBlockDescriptor(), name, val, NULL, 0, 1), mOriginalValue(val) { @@ -1454,10 +1390,19 @@ namespace LLInitParam } } - Alternative& operator=(value_assignment_t val) + void choose() + { + static_cast<enclosing_block_t&>(Param::enclosingBlock()).paramChanged(*this, true); + } + + void chooseAs(value_assignment_t val) + { + super_t::set(val); + } + + void operator=(value_assignment_t val) { super_t::set(val); - return *this; } void operator()(typename super_t::value_assignment_t val) @@ -1466,12 +1411,8 @@ namespace LLInitParam } operator value_assignment_t() const - { - if (static_cast<enclosing_block_t&>(Param::enclosingBlock()).getCurrentChoice() == this) - { - return super_t::getValue(); - } - return mOriginalValue; + { + return (*this)(); } value_assignment_t operator()() const @@ -1508,7 +1449,7 @@ namespace LLInitParam } }; - template <typename DERIVED_BLOCK, typename BASE_BLOCK = BaseBlockWithFlags> + template <typename DERIVED_BLOCK, typename BASE_BLOCK = BaseBlock> class Block : public BASE_BLOCK { @@ -1604,13 +1545,6 @@ namespace LLInitParam }; - class Flag : public BaseBlockWithFlags::FlagBase - { - public: - Flag(const char* name) : FlagBase(name, DERIVED_BLOCK::selfBlockDescriptor().mCurrentBlockPtr) - {} - }; - template <typename T, typename RANGE = BaseBlock::AnyAmount, typename NAME_VALUE_LOOKUP = TypeValues<T> > class Multiple : public TypedParam<T, NAME_VALUE_LOOKUP, true> { @@ -1623,7 +1557,7 @@ namespace LLInitParam typedef typename super_t::const_iterator const_iterator; explicit Multiple(const char* name = "") - : super_t(DERIVED_BLOCK::selfBlockDescriptor(), name, container_t(), &validate, RANGE::minCount(), RANGE::maxCount()) + : super_t(DERIVED_BLOCK::selfBlockDescriptor(), name, container_t(), &validate, RANGE::minCount, RANGE::maxCount) {} Multiple& operator=(value_assignment_t val) @@ -1641,100 +1575,10 @@ namespace LLInitParam static bool validate(const Param* paramp) { U32 num_valid = ((super_t*)paramp)->numValidElements(); - return RANGE::minCount() <= num_valid && num_valid <= RANGE::maxCount(); + return RANGE::minCount <= num_valid && num_valid <= RANGE::maxCount; } }; - template <typename T, typename RANGE = BaseBlock::AnyAmount, typename NAME_VALUE_LOOKUP = TypeValues<T> > - class Batch : private TypedParam<T, NAME_VALUE_LOOKUP, false> - { - public: - typedef ParamValue<T, NAME_VALUE_LOOKUP> param_value_t; - typedef TypedParam<T, NAME_VALUE_LOOKUP, false, IsBlock<param_value_t>::value> super_t; - typedef Batch<T, RANGE, NAME_VALUE_LOOKUP> self_t; - typedef typename super_t::value_assignment_t value_assignment_t; - typedef typename super_t::value_t value_t; - - struct BatchDefaultValue : public ParamDescriptor::UserData - { - BatchDefaultValue(const T& value) - : mValue(value) - {} - - T mValue; - }; - - explicit Batch(const char* name, value_assignment_t val) - : super_t(DERIVED_BLOCK::selfBlockDescriptor(), name, val, NULL, 0, 1), - mLastParseGeneration(-1) - { - BlockDescriptor& block_descriptor = DERIVED_BLOCK::selfBlockDescriptor(); - if (LL_UNLIKELY(block_descriptor.mInitializationState == BlockDescriptor::INITIALIZING)) - { - ParamDescriptorPtr param_descriptorp = block_descriptor.mCurrentBlockPtr->findParamDescriptor(*this); - - if (param_descriptorp) - { - param_descriptorp->mDeserializeFunc = &deserializeParam; - param_descriptorp->mUserData = new BatchDefaultValue(new param_value_t(val)); - } - } - } - - explicit Batch(const char* name = "") - : super_t(DERIVED_BLOCK::selfBlockDescriptor(), name, defaultValue<T>(), NULL, 0, 1), - mLastParseGeneration(-1) - { - BlockDescriptor& block_descriptor = DERIVED_BLOCK::selfBlockDescriptor(); - if (LL_UNLIKELY(block_descriptor.mInitializationState == BlockDescriptor::INITIALIZING)) - { - ParamDescriptorPtr param_descriptorp = block_descriptor.mCurrentBlockPtr->findParamDescriptor(*this); - - if (param_descriptorp) - { - param_descriptorp->mDeserializeFunc = &deserializeParam; - } - } - } - - Batch& operator=(value_assignment_t val) - { - set(val); - return *this; - } - - DERIVED_BLOCK& operator()(value_assignment_t val) - { - super_t::set(val); - return static_cast<DERIVED_BLOCK&>(Param::enclosingBlock()); - } - - using super_t::operator(); - - private: - static bool deserializeParam(Param& param, Parser& parser, const Parser::name_stack_range_t& name_stack, S32 generation) - { - self_t& typed_param = static_cast<self_t&>(param); - - if (generation != typed_param.mLastParseGeneration) - { - ParamDescriptorPtr descriptor = typed_param.enclosingBlock().findParamDescriptor(param); - if (descriptor && static_cast<BatchDefaultValue*>(descriptor->mUserData)) - { - static_cast<param_value_t&>(typed_param) = (static_cast<BatchDefaultValue*>(descriptor->mUserData))->mValue; - } - else - { - static_cast<param_value_t&>(typed_param) = param_value_t(value_t()); - } - typed_param.mLastParseGeneration = generation; - } - return super_t::deserializeParam(param, parser, name_stack, generation); - } - - S32 mLastParseGeneration; - }; - class Deprecated : public Param { public: @@ -1769,6 +1613,7 @@ namespace LLInitParam } }; + // different semantics for documentation purposes, but functionally identical typedef Deprecated Ignored; protected: @@ -1790,6 +1635,100 @@ namespace LLInitParam }; + template <typename DERIVED_BLOCK, typename BASE_BLOCK = BaseBlock> + class BatchBlock + : public Block<DERIVED_BLOCK, BASE_BLOCK> + { + public: + typedef BatchBlock<DERIVED_BLOCK, BASE_BLOCK> self_t; + typedef Block<DERIVED_BLOCK, BASE_BLOCK> super_t; + + BatchBlock() + : mLastParseGeneration(-1) + {} + + bool deserializeBlock(Parser& p, Parser::name_stack_range_t name_stack, S32 generation) + { + if (generation != mLastParseGeneration) + { + // reset block + *static_cast<DERIVED_BLOCK*>(this) = defaultBatchValue(); + mLastParseGeneration = generation; + } + return super_t::deserializeBlock(p, name_stack, generation); + } + + bool mergeBlock(BlockDescriptor& block_data, const BaseBlock& other, bool overwrite) + { + if (overwrite) + { + *static_cast<DERIVED_BLOCK*>(this) = defaultBatchValue(); + mLastParseGeneration = -1; + // merge individual parameters into destination + return super_t::mergeBlock(super_t::selfBlockDescriptor(), other, overwrite); + } + return false; + } + protected: + static const DERIVED_BLOCK& defaultBatchValue() + { + static DERIVED_BLOCK default_value; + return default_value; + } + + S32 mLastParseGeneration; + }; + + + + template<typename DERIVED_BLOCK, + typename BASE_BLOCK, + typename NAME_VALUE_LOOKUP> + class ParamValue <BatchBlock<DERIVED_BLOCK, BASE_BLOCK>, + NAME_VALUE_LOOKUP, + true> + : public Param, + protected BatchBlock<DERIVED_BLOCK, BASE_BLOCK> + { + typedef const BatchBlock<DERIVED_BLOCK, BASE_BLOCK>& value_assignment_t; + + ParamValue() + : BatchBlock<DERIVED_BLOCK, BASE_BLOCK>() + {} + + ParamValue(value_assignment_t other) + : BatchBlock<DERIVED_BLOCK, BASE_BLOCK>(other) + { + } + + void setValue(value_assignment_t val) + { + *this = val; + BatchBlock<DERIVED_BLOCK, BASE_BLOCK>::mLastParseGeneration = -1; + } + + value_assignment_t getValue() const + { + return *this; + } + + BatchBlock<DERIVED_BLOCK, BASE_BLOCK>& getValue() + { + return *this; + } + + operator value_assignment_t() const + { + return *this; + } + + value_assignment_t operator()() const + { + return *this; + } + + }; + template<typename T> class CustomParamValue : public Block<ParamValue<T, TypeValues<T> > >, @@ -1955,6 +1894,16 @@ namespace LLInitParam return mValue; } + operator value_assignment_t() const + { + return getValue(); + } + + value_assignment_t operator()() const + { + return getValue(); + } + S32 mKeyVersion; protected: @@ -1965,30 +1914,29 @@ namespace LLInitParam mValue = value; } - bool mergeBlockParam(bool param_provided, BlockDescriptor& block_data, const BaseBlock& other, bool overwrite) + bool mergeBlockParam(bool source_provided, bool dst_provided, BlockDescriptor& block_data, const BaseBlock& source, bool overwrite) { - if (param_provided) - { - return mergeBlock(block_data, other, overwrite); - } - return false; - } + bool source_override = source_provided && (overwrite || !dst_provided); - bool mergeBlock(BlockDescriptor& block_data, const BaseBlock& other, bool overwrite) - { - const derived_t& src_typed_param = static_cast<const derived_t&>(other); + const derived_t& src_typed_param = static_cast<const derived_t&>(source); - if (src_typed_param.mValueAge == VALUE_AUTHORITATIVE) + if (source_override && src_typed_param.mValueAge == VALUE_AUTHORITATIVE) { // copy value over setValue(src_typed_param.getValue()); return true; } - else + // merge individual parameters into destination + if (mValueAge == VALUE_AUTHORITATIVE) { - // merge individual parameters into destination - return block_t::mergeBlock(block_t::selfBlockDescriptor(), src_typed_param, overwrite); + static_cast<derived_t*>(this)->updateBlockFromValue(dst_provided); } + return mergeBlock(block_data, source, overwrite); + } + + bool mergeBlock(BlockDescriptor& block_data, const BaseBlock& source, bool overwrite) + { + return block_t::mergeBlock(block_data, source, overwrite); } mutable S32 mValidatedVersion; |